I have the opportunity to make the comparison Marantz SR7012 vs Denon AVRX6400H. Receivers vary in their technical characteristics and appearance, although they are in the same price range.
Denon AVRX6400H is a 11.2 channel receiver with 140W/channel. It has 11 powerful amplifiers for an ultimate 3D Audio. Denon AVRX6400H has an input audio / video section with support of 4K Ultra HD and HDR, with the standards of Dolby Vision / HLG.
Marantz SR7012 has less power onboard in comparison with Denon. SR7012 is a 9-channel model with 125W per channel that can work with modern 3D sound formats, such as DTS: X, Dolby Atmos, and Auro-3D. The receiver works with 4K-resolution and is able to scale even analog video to Ultra HD.
Connecting each of the receivers did not take long time. Matching Denon AVRX6400H vs Marantz SR7013, I should notice that both have the wide variety of connectors and supported technologies. The standard set is 8 HDMI inputs, support for HDCP 2.2, Dolby Vision, HDR-video, and HLG. On board of both receivers there are a dual-band Wi-Fi, Bluetooth and AirPlay.
Denon AVRX6400H has 7 pairs of screw terminals for speakers and 2 HDMI outputs.
Marantz SR7012 has a wider range when I compare it to the AVRX2400H. 11 pairs of screw terminals with a color marking are provided for connecting the speakers. And 3 HDMI output are provided for video.
Denon AVRX6400H has the matte metal body. All the inputs and buttons on the front panel are hidden. 6400H is equipped with a clear, informative display, and a large compact remote control.
Marantz SR7012 has solid design. The receiver can be integrated into any interior. The front panel has the necessary set of controllers and a small but bright display. An additional set of buttons is hidden beneath the panel, below the screen.
Denon AVRX6400H overview
Marantz SR7012 overview
The best receiver is Denon AVRX6400H. Check Denon AVRX6400H price on Amazon